It is very harmful to human body to gain weight and lose weight quickly in a short time. In order to achieve slimming effect in a short time, many actors will adopt? Excessive dieting? In this way, you will not eat staple food and meat, such as rice, noodles, steamed bread and other starch foods, pork, beef and other meat and poultry products. Even vegetables and fruits are rarely eaten, and you can eat them by drinking water every day. In the long run, it is easy to suffer from anorexia nervosa and constipation, because eating too little food, especially low dietary fiber foods such as vegetables and fruits, will reduce intestinal irritation, and the weakening of reflex peristalsis will cause constipation, and finally it can only be relieved by laxatives. We all know it's a three-point poison. If laxatives are used for a long time, they will also be dependent on laxatives, causing damage to nerve plexus cells in the body and leading to their degradation.

Excessive dieting will also reduce people's resistance, make the body malnourished, prone to dizziness, limb weakness, nausea and other phenomena, accompanied by hypoglycemia, but also induce bad emotions, such as insomnia, anxiety, obsessive-compulsive disorder and so on. It is also easy to cause endocrine disorders, because the nutrients needed to balance hormones in the human body include sugar, fat and protein, which will make people's body fat rate too low and easily lead to infertility. Being thin will also reduce hair volume. Because of the irregular metabolism in the body, hair will fall off quickly. People's skin will also become rough because of sudden thinning, pores will expand and wrinkles will increase, mainly because the body lacks nutrition.

Rapid weight gain will lead to dyslipidemia, because we will eat a lot of high-calorie and high-fat foods in the process of weight gain, which will cause many abnormalities in the body, such as fatty liver, and increase the incidence of hypertension. It will also lead to indigestion, insufficient nutrient absorption, increase the burden on the stomach, and easily lead to digestive system failure, food accumulation, constipation and other problems.